Did you read our guide to switching on the iPhone X’s Unofficial Battery Saver Dark Mode in order to stretch the battery life of your new iPhone X? Well, it turns out that blacking out as much of the screen as possible really can save a whole lot of juice. In testing, running the iPhone X in dark mode saves a staggering amount of battery power.
Using iPhone X’s dark mode uses less than half the battery power

Photo: Ste Smith/Cult of Mac